Improvement in apparatus for drying photographs



UNITED STATES PATENT OEEToE.

VALFRED O. PLATT, OF OBERLIN, OHIO.

IMPROVEMENT IN APPARATUS FOR DRYING PHOTOGRAPHS.

Specification forming part of Letters Patent No. 57.963, dated September1l, 1866.

To all whom t may concern:

Beit known that I, ALFRED C. PLATT, of Oberlin, county of Lorain, andState of Ohio, have invented certain new and useful Improvements in theprocess or. device for holding prints or pictures mounted uponcard-board in a curved or'convex shape while drying 5 and I do herebydeclare that the same is described and represented in the followingspecification and drawings, and to enable others skilled in the art tomake and use the same I will proceed to describe its construction ormode of operation.

The nature of this improvement consists in providing a convenientarrangement, device, or process for holding (thick paper-board or whatis commonly called card-board ha'ving a print or picture pasted on oneside or surface thereof) in a curved position ,while drying; or, inother words, it consists of a properarrangement or device for holding(the print or picture surface mounted upon any proper inaterial) in acurve or convex shape while drying, either by means ofnatural,atmospherical, or artificial heat, so that when dried and removed fromthat position it will assume a true even surface, or nearly so, thcobject of which is to secure and retain a true level surface, or nearlyso, ot' the picture or print when mounted on any proper board (thetendency of which may be to curl or warp) after it sha-ll have becomedry, and to produce that resultin an easy and convenient manner.

In the accompanying drawings, Figure 1 is l a side elevation ofvcircular rotating shelving mounted upon a stand so as to render itconvenient for 'use in any desirable place. These shelves are arrangedin an adjustable manner, so as to be easily'adjusted to receive and holdthe length or width of the cards in a more or less curved shape. Theseshelves are also provided with elevations or depressions, straight orcurved,` in or against which the edges of the cards rest. Said shelvesare or should be placed at such distance apart that, as the card isplaced therein, the print or picture mounted thereon shall be held in acurved shape until well dried.

Fig. 2 is a perspective view of two shelves held at the proper distanceapart to receive the length or width of the card, having circular cleatsor grooves into which the cards are slid, so as to produce a curvedsurface of the picture whilebeing held in that position.

Fig. 3 shows another mode or device for holding the card or the print orpicture-surface thereof in a convex shape, which may be made of wood ormetal. When made of wood its shape may be produced as follows: first,take a board, (say eight by ten inches,) secure it in the usual way in alathe, and, with the tool used for that purpose, turn off from the outercorners or edges so as to form a true circle across its surface; thensecure buttons or clasps at or near the ends to hold the corners of thehoard in a curved or convex shape thereon while drying. This mode ordevice is particularly adaptedto large size cards.

a are the shelves. b are the straight or circular cleats or grooves. care standards or adjusting-rods. d is one of the many forms in which thestand may be made, and upon which the shelves are mounted. c are claspsor buttons forholding the card upon the turned, curved, or convexsurface.

These shelves may be made in one or more pieces, two or more in number,with straight circular form, solid or open in the center. When theseshelves are made circular and open in the center, and mounted so as torevolve upon a stand, as shown in Fig. l, a

lamp or some other heating device may be placed underneath or insideofthe open space, so as to allow the heat thereof to expand ordiil'nseitselt'among the cards arranged thereon,

to facilitate the drying process. Oards being held in this way, as abovedescribed, until dry, will assume and -retain a true even surface, ornearly so. In this way I am enabled to nearly or quite remove theobstinate tendency of cards (when mounted and dried in the common way)tocurl or roll, which is found to bc very annoying.

I believe I have thus shown the nature, construction, and advantage ofthis improvement, so as to enable others skilled to make and use thesame therefrom.

I claim- A A device for holding a print or picture in a curved or convexshape while drying, substantially as described.

ALFRED C. PLATT. [as] Vitnesses:

CARRIE MANDLEBAUM, J. W. Buss.

